Ribbon attachment e



W. H. SINCLAIR. RIBBON ATTACHMENT ESPECIALLY ADAPTED FOR TYPEWRITERS. APPucATlon meu ocr. 26. |921.

1,420,874, lemma June 27, 1922.

alianza s UNT STATES PATENT lFlCtE.

WTLLIAM I-I. SINCLAIR, OF BERKELEY, CALIFRNIA, ASSIGNOR TO MANIFOLD IMPRESSIONS CORPRATION, OF CARSON CITY, NEVADA, A CORPORATION OE NEVADA.

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To all fur/wm t may concern.'

Be it known that l, WILLIAM H. SiN- oLAnz, a citizen of the United States, reside ing at Berkeley, in the countyof Alameda and State of California, have invented certain new and useful Improvements in Ribbon Attachments Especially Adapted for Typewriters, of which the following is a specification.

My i'ivention relates in general to the art of manifolding for the production of what ment.

are known as carbon-copies of original impressioiis made by typewriters and similar machines, and it especially relates to manifolding devices associated with the platencarriage of such machines, and comprising one or more suitable impression ribbons and means l'or moving' them into and out of functional positionbetween the sheets. of paper in the line of type-impact.

In devices of this nature, it is proposed to employ a single length of impressionribbon, provided with a clip at each end, adapting the ribbon to be readily connected with and detached fromapair of spaced arms, between which it stretched and carried under proper tension parallel with and approximately 'the length of the machine platen. Such a ribbon, necessarily has a relatively short life, and it is, therefore, of importance that .it be vcapable of being attached and-detached with ease, and should also bc cheap to manufacture, consistent with the necessary strength to resist and sustain the tension of its mounting. One of the factors in the problem the clips or end attachments by which the ribbon. is connected 'with the carrying arms; and it is particularly to this factor that my present invention is directed, theobject of said invention being to provide' an impression ribbon for this purpose which is economical to manufacture, can be readily attached and,

detached, and has the requiredstrength in its attachment to resist the tension strain under which it is carried.

To this end my invention consists in the novel ribbon attachment for the described purpose, which l shall now fully describe, by reference to the accompanying drawings, in which- Fig. l is an end View of the platen earriage of a typewriter, showing one form Spccincation of Letters Patent. lrtgupd Jun@ 227, 1922 Application filed October 2G, 1921.

Serial No. 510,411.

of a manifolding device to which my ribbon attachment is applicable.

Fig. 2 is perspective view showing the ribbon attached to the carrying arms of the manifolding device.

Fig. 3 is a perspective view, enlarged, of one end of the ribbon, showing the application thereto of the vclip member in its blank or initial form.

'Figa 4 is a perspective view of the same, showing the first fold of the clip attach- Fig. 5 is a perspective view of the same showing the `final or completed fold of the clip attachment.

Fig. (3 is a sectional view of Fig. 5, showing in addition the application of the completed clip to the notch of the carrying arm.

F 7 is an elevation of a modification. of the shape of my clip attachment, showing it in its blank or initial form.

Fig. 8 is an elevation of the same completed and applied to an inclined end of the carrying arm.

l is the impression ribbon. This may be of suitable material, say, for example, a textile fabric.

To each end ofthe ribbon is applied a clip member 2, as shown in Fig. 2. This clip member is made of some relatively cheap material, in practice, of paper. The paper blank, als shown in Fig. 3, comprises a body portion@ and two wing portions Z1.

The. body portion is placed upon and scoured, as by adhesion, tothe end. of the ribbon,'and both arejpreferably, though not necessarily, indented,as -shown at 3 on each side, to better deline the line of -fold and to forni a bight more easily adapted for the entrance of the carrying arm as will presently appear. p

IAfter theelip blank 2 has been initially applied, as in Fig. 3, the end of the ribbon and the body of the clip are folded inwardly as shown in Fig. 4, the adjacent surfaces of the ribbon being caused to adhere, except at the bight, which is left free and open as in Fig. 5, which result may be had by making` the fold over a rod, for example. Then, as shown in F ig. 5, the side wings Z) are folded over on the body a of the clip and are caused to adhere thereto. The clip attachment is thus completed, and may be fitted upon the notch 4 in the ends of the arms 4 of the mounting, as shown in Figs. 2 and 6.

It will now be seen that although the clip is made of relatively frail and cheap material, it will stand any required tension strain placed upon it, when the ribbon is stretched between the arms 4, because the strain is borne by the relatively stronger ribbon itself, which is folded in the securing bight and forms part of the clip attachment. In Fig. 2, the numeral 5 is a rod forming the axis of movement of the ribbon to and from its functional position, as shown in Fig. l, in which 6 is the platen-carriage of a typewriter, 7 is the platen, S .is one of the brackets which carry the rod 5, and 9 is the paper` guide apron. This assemblage represents one form of manifolding devices for typewriters, with which my ribbon attachments may be used, though it is to be understood that any device employing movable carrying arms between which the ribbon is stretched under tension may be adapted for the novel clip attachment of my ribbon.

ln Figs. 7 and S, l show my clip attachment in slightly modified contour adapting it for al1-angular securing bight to provide for a certain adjustment or restoration of tension, if the ribbon should become slack. In this shape, the end of the ribbon and the end of the body portion a of the paper clip 2 are cut on an angle as shown in Fig. 7 and the side wings Z) of said clip are out of line with each other. A diagonal line of holes l() perpendicular to the angled edge is made through both ribbon and clip body, and the bight fold is made along said line of holes, after which the opposite wing is folded down as shown in 8. The end of the carrying arm 4 is inclined as shown at 11 and is provided with tongues l2 which engage -the holes 11.0 in the bight of the clip. The object of this angular connection is, by setting the clip to different positions along the inclined end of the arm 4, to restore the tension of the ribbon, if it should become slack. This angular (.-onncetioin however. is not per se my invention, the oblject in showing` it herein being merely to illustrate a modified shape of my clip in so far as the essential combination of ribbon and paper and their folding are concerned.

It may be further noted that my ribbon attachment as herein described provides a convenient and cleanly means for the operator to take hold of the ribbon, in the act of placing it in the manifolding device or removing it therefrom, since the grip of the hands will be on the clip member 2, and the ribbon itself need not be touched.

It will also be seen that the side wings 7) of the clip member are so shaped and related to the bod portion c that when folded down to final place they will leave the bight of the attachment open at each end as shown in Figs. 5 and 8, to enable it to be passed upon and fitted to the carrying arms'.

I claim l. A typewriter ribbon attachment comprising an end portion of the ribbon, and a clip composed of a body portion secured upon the ribbon end portion, and wing portions projecting laterally from said end portion, said ribbon end portion and said body portion of the clip being folded to form a terminal bight for (o-onnection with a carrying arm, and said wing portions being folded upon and secured to the folded exterior of the body portion.

2. A typewriter ribbon attachment comprising an end portion of the ribbon, and a clip composed of a body portion secured upon the outer surface of the ribbon end portion, and wing portions projecting laterally from said end portion, said ribbon end portion and said body portion of the clip being folded inwardly to form a terminal bight for connection with a carrying arm, and said wing portions being folded upon and secured to the folded exterior of the body portion.

A typewriter ribbon attachment com prising an end portion of the ribbon, and a clip composed of a body portion secured upon the ribbon end portion, and wing portions projecting latcrally from said end portion, said ribbon end portion and said body portion ol the clip being folded to form a terminal bight for connection with a carrying arm, and said wing portions being fold-- ed upon and secured to the folded exterior of the body portion in position to leave the ends of the terminal bight open.

In testimony whereof I have signed my name to this specification.

WILLIAM H. SINCLAIR, 

